| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] could have [been] [adj] | 16 |
|
| 2 | but [pron] could have [be] [adj] | 16 |
|
| 3 | but [pron] could have be [adj] | 16 |
|
| 4 | but [pron] could have [be] [adj] | 16 |
|
| 5 | but [pron] could have been [adj] | 16 |
|
| 6 | but [pers pn] could have [be] [adj] | 13 |
|
| 7 | but it could have [be] [adj] | 9 |
|
| 8 | but it could have [be] [adj] | 9 |
|
| 9 | but [pron] could have [be] [det] | 6 |
|
